Mine car



C. A. BOYD Aug. 2, 1932.

MINE CAR Filed Feb. 14, 19251v 5 Sheets-Sheet l c. A. BOYD MINE CAR Aug; 2, 1932.

Filed Feb. 14, 1931 f5 Sheets-Sheet 2 me/#1to1 50%,

Clarence Aug. 2, 1932. c. A. BOYD A yMINE CAR Filed Feb.' 14, 1931 '.5 Sheets-Sheet 5 vce 'Patented Aug. 1,932

UNiTEo STATES PATENTA OFFICE CLARENCE A. BOYD, OIE' BARNESVILLE, OHIO, .ASSIGNOR THE WATT CAR AND WHEEL companion BAnNEsVILLE, omo,

A COTctlPORATEION F OHIO MINE CAB Application led February 14, 1981.' Serial No. 515,835.

This invention relates to improvements in industrial cars, such as quarry and mine cars,

but particularly to the latter.

A Generally, the overall dimensions of mine ,5 cars are lim'ted. That is, their bodies must not exceed a certain height and breadth, and there must be a predetermined clearance beneath the car body. Consequently, manufacturers of these cars are constantly seeking to provide a car having a maximum capacity for a given set of overall dimensions because, as the capacity increases, the cost per cubic foot of coal carried decreases. A ain, it has always been desirable to reduce the weight of the car as much as possible without sacrificing the strength and wearing properties thereof.

With .these ends in view, the present invenu tion, :n its broadest aspects, contemplates a mine car comparatively light in weight but of sturdy and durable construction and which will have a maximum capacity for any given set of overall dimensions. Y

More specifically, one object of the invent`on is to provide a novel form ofcorner construction between the bottom of the'car and the sides and ends, whereby a minimum quantity of material is utilized at these points without detracting from the strength of he car.

A further .object of theinvent'on is to tie the bumper o the man sills of the car, so to speak, a minimum number of parts and a minimum quantity of material being used. This portion of the car is such that the bumper is practically built into the car floor or bottom.

Another object is to elimnate the use of a draw'bar extending the full length of the car. The bumper being built into the ioor, as above mentioned, lends to such an arrangement, but in furtherance of this last-mentioned object, the car Hoor is formed with a longitudinally extending channel or offset port'on in line with comparatively short draw bars at the ends ofthe car. This channel is formed by oifsetting the bottom plates and such oi'set portion functions not only as a draw bar for transmitting draft strains,

xembodying the but it also reinforces or strengthens theV floor plates for resisting buiiing strains.

A still further object is to simplify the attachment of the oor plates to the main sills.

'With these and other objects in view, the 55 i invention consists in certain details of construction and combinations and arrangements of parts, all as will hereinafter be more fully described and the novel features theren of particularly pointed out in the appended claims.

In the accompanying drawings-- Figure 1 is a bottom plan view of a car present invention in its precok ferred form;

Fig. 2 is a side view, partly broken away, andpartly in section;

Fig. 3 is an end view, also partly broken away with some parts shown in section;

Fig. 4 is a detail sectional view, illustratlng a modied form of construction of the `corner formed by the sides and bottom of the car;

Fig. 5 is an end view of one of the bumper block supporting elements;

Fig. 6 isa plan view thereof;

Fig. 7 is an elevational view thereof;

Fig. 8 is an end view of a supplemental supporting element for the bumper block;

1g. 9 is a plan view thereof; v Fig. 10 is an end view of one of the bottom end plates;

Fig. 11 is a plan view thereof;

Figure 12 is a sectional view on the line 12-12 of Figure 1.

As usual, the car body is built up on main sills 15 which are preferably of channel beam formation, although other types of construction might be use At proper points longitudinally of the sills 15, openings are ro vided for the axles 16, the axles exten in not only through the sills,.but also throug i suitable bearing members 17 at ythe inner and outer sides of the sills. The wheels 18 are mounted on the axle 16 in accordance with the general practice. The bottom oi the car is formed at its central portion by one or more plates 19 that lie substantially flush with the lower edges of the sills 15. By having the axles project through the sills 100 above the bottom portion 19, the capacity of' the car is naturall increased. To add to the strength of the bottom plate or plates 19 and also to facilitate the attachment thereof to the main sills, this central portion of the floor is flanged upwardly at its side edges, as indicated at 20. These flanges are utilized for attaching the plate or plates to the sills and, ofcourse, function as a rib would function, to prevent flexing of the plate lon itudinally of the car. To further add to t e strength of the bottom plate or plates, this central portion of the car is also offset upwardly intermediate its sides, forming a channel 21 that extends longitudinally of the central portion of the car bottom. This channel not only also reinforces the bottom plate, but it is also utilized for transmitting draft strains, as will hereinafter be more fully described in vconnection with the description of the bumper and coupling devices for the car.

The side portions of the car bottom are formed of what will be termed flare plates which consist of the ordinary metallic plates. These side plates or flare plates, indicated at 22, are attached to the upper edges of the sills 15 and project laterally therefrom. Openings are made in these flare plates at the proper points for accommodation of the upper peripheral portions of the wheels 18,- said openings being closed by wheel housings 23. To simplify the construction of this portion of the car bottom and the sidesof the car and to also lend rigidity to these parts the flare plates and the plates 24 constituting the sides of the car body are flanged and overlapped, as shown in Fig. 3. This construction consists in offsetting a portion 25 of the flare plate at an angle of approximately 45 degrees and the adjacent portion 26 of the flare plate at an angle of 45 degrees with respect to the portion 25, or at an angle of 9() degrees with respect to the major portion of the plate itself. Likewise, the lower portions of the side plates 24 are flanged or offset at approximately right angles, as shown at 27 The flanged portion 26 of the bottom plate engages against the side of the car and the anged portion 27 of the sidel engages against the bottom plate 22, with the odset portion 25 spanning the angle formed by the flange of the side plate. The overlapping flanged portions facilitate attachment of the plates to one another and the disposition of the portion 25 with respect to the joint formed by the plates greatly strengthens this connection and also assists in resisting any tendency of the side and bottom plates to buckle. Of course, the overlapping of these plates may be reversed or the side plate may be flanged identically the same as the bottom plate, as shown in Fig. 4. In this view the side plate 24 is formed with the portion 27 disposed at right angles thereto, but with angle of 45 to the said an intermediate portion 25b disposed at an angle of approximately 45 to the portions 27, 24. The bottom plate is formed as in Fig. 3, having the portion 26 disposed at right angles to the major portion of the plate and the intermediate portion 25 disposed at an major portion and the flanged portion 26. With this form of flanging, the intermediate portions 25, 25b lie flat against one another, instead of leaving a space in the corner joint, as in the construction illustrated in Fig. 3. The upper edge of the side plates may also be strengthened or reinforced by inwardly projecting flanges or rolled portions extending longitudinally thereof. To lend further support to the flare plates 22, braces 29 may be provided by attachment to the sills 15 and the bottom faces of the flare plates.v

To simplify the construction and attachment of the end plates to the car, said plates, indicated at 30, are formed with inwardly extending flanges 31 at the side edges thereof. These flanged portions 31 overlap the side plates 24 and may be attached thereto by suitable securing means. Likewise, said end plates are formed with flanged portions 32 along their bottom edges and these flanged portions overlap and are attached to the flare plates 22. Also, the intermediate portions of the bottom edges of the end plates are formed with flanges 33 that overliejthe filler block 34 of the bumper. By the use of this flanged construction of end plate, the same may be securely attached to the sides and bottom of the car and, at the same time, the flanges lend strength to the plates so that other reinforcing means, such as angle irons, are rendered unnecessary. Furthermore, by using this flanged construction it is possible to build the bumper, so to speak, into the car itself. More particularly, the flange 83, overlying the bumpervfiller block 34, constitutes one of the elements for tying the bumper into the car body as will now be more fully explained.

In describing the bumper construction, it will be necessary to describe only one end of the car. In building or tying the bumper into the car body there is placed across the end of the car, intermediate the sills 15, a vertically disposed plate 35, provided at its ends with flanges 36 that are attached to the side faces of the main sills. Along its lower edge, plate is formed with an outwardly extending flange 37, that engages against the bottom face of the'filler block 34, said block preferably being recessed so that said flange will lic flush with the bottom face thereof. Along its upper edge, plate 35 is formed with an inwardly extending flange 3S which forms a support for the end of the car body that will be later described. A second supporting plate for the filler block is shown in Figs. 8 and 9. This member consists of a vertically disposed plate 39 formed at its 'upper edge with a comparatively large flange 40 correspondin'g in shape to the filler block 34, but terminating at its outer ed e short of the face of the filler block, wherey butng strains will necessarily be transmitted through said block and not through the plate. Also, at each end of the bottom edge of plate 439 is a flange 41, the two flanges of the plate being attached to the bottom surfaces of the sills 15. Flange 40 of the plate underlies the iiaiige 37 of plate 35 and the ller block. Overlying the filler block and disposed between the flange 33 of the end plate and said block is an extension or flange 42 of a plate 43. This extension 42 corresponds in shape' to said block,

but, as in the case of flange 40, it also terminates short of the forward edge of the block. At the inner edge of the block, extension 42 rests on the flange 38 of plate 35 and, beginning at the inner edge of flange 38, said extension merges into the plate 43 which is inclined and forms the end portionl of the car bottom. To tie this plate 43 and its extension 42, into the body construction, the same is formed at the side edges of the inclined portion 43 with upstanding flanges 44 that are attached to the inner surfaces of the main sills 15, and at its inner edge it is l formed with Hanges 45 that engage against and are attached to the end of the bottom plate 19 at opposite sides of the channel 21, the central portion of the plate 43 being cut away as at 46 to accommodate the offset constituting said channel. As shown in Fig. 2, the bumper filler block 34 seats snugly between this vertically spaced ange or extension 42 and flange 40 and its outer surface is protected by the bumper shoe 47. The filler block, as well as the shoe 47, is rigidly secured in place by a multiplicity of bolts extending through the filler block and the several overlying and underlying metallic elements. Y

With the construction just described, the bumper is rigidly built into the car and the several elements entering into the bumper construction are each individuallv reinforced bythe iianges formed thereon. For instance,

the flanges on plate 35 tend to brace and reinforce it and the flanges44 on the inclined* plate 43 likewise tend to strengthen that member. Also, by having the plate 35 and the plate 43 attacheddir'ectly to the main g sills of the car body, all drafty and buiing strains are transmitted directlyv from the bumper to the sills and car bottom. As before mentioned, the present construction eliminates the necessity of utilizing a .draw bar that extends the full length of the car. In the present construction, a draw bar is provided at each end of the car, spaced vertically from the bumper but o iiset downwardly within the-car body, whereby its inner end may be attached to the inclined plate 43 and the channel 21 forming the car bottom. In other words, draft strains are transmitted though the car bottom by means of the channe 21. i

It is preferred that this channel 21 be offset upwardly from the bottom of the car., instead of downwardly, because of the necessity of maintaining a certain clearance beneath the car. Likewise, it is preferred, but not necessary, that the channel 2l be continuous throughout the length of the car bottom.

To strengthen and support the iiare plates at the ends of the car, the end plates and flare plates braces, preferably, but not necessarily, in the form of angles 49.v In the present instance, each angle is shown as having one leg attached to the end plate and its other leg to the iiare plates. In such a construction, the bolts that secure the flanges 32 of the end plates to the flare plates may extend on through the leg of the angle49 which is to be attached to said Hare plates. The angles 49 are also shown as eX- tending across the entire body but this is not essential as the intermediate portion may be omitted, thereby eliminating any bending operation on the angle to accommodate the channel 21.

It will be appreciated from the foregoing description that the present car consists of a comparatively few number of parts, simplifying its construction, but without detractin g from the sturdiness thereof. The use of fianges for securing together the'several parts and for strengthening those parts results in the finished car being v lighter in weight, a feature that is very important to mine operators from a haulage standpoint. The present car, byactual measurement, has been found to. have 'what is believed to be a maximum capacity for the overall dimensions allowed. Again, the novel form of bumperk construction and its attachment to the car proper is such that drawbar pull and any bumper effect?v is transmitted directly to the sill members which, of course, are the proper members to take care of these forces,

What I claim is 1. In a mine car, a body having fla-re plates forming a portion of its bottom, and side plates extending upwardly from said are plates, said flare plates having offset portions overlapping and attached to'the side plates and said side plates having offset edge portions overlapping and attached to said are plates.

2. In a mine car, a body having flare plates forming a portion of its bottom, .and side plates extending upwardly from said flare plates, said fiare plates having offset portions overlapping the side pla-tes and said side plates having oiiset edge portions overlapping said iiare plates with the angles formed by the oifset portions of abutting there is attached to v ICI) edges thereof lates coinciding longitudinally of the car o y.

3. In a mine car, a car body having flare plates forming a portion of its bottom, and side plates extending upwardly therefrom, each set of said plates having offset edges overlapping and attached to the other set, with portions of one set of plates spaced from and spanning the angles formed in the other set of plates.

4. In a :mine car, a car body having flare plates forming a portion of its bottom', and side plates overlapping said flare plates and extending upwardly therefrom, said flare plates and side plates being attached directly to each other, one set of said lates having their overlapping portions o set at substantially right angles with the overlapping P portions of the other set of plate offset at an angle less than the angle formed in the rst mentioned set.

5. In a mine car, a car body comprising a bottom, side plates attached to said bottom, end the p ates at the side edges thereof and overlapping said side plates, flanges formed integrally with said end plates at the lower and overlapping the car bottom, a bumper at each end of the body, and flanges formed integrally with said end plates attached to said bumpers.

6. In a mine car, a car body having a bottom formed with a depressed central portion and raised side portionsside plates secured to and extending upwardly from said bottom, an end plate at each end of the body, integral flanges at the side edges of said en plates 'attached to the side plates and integral flanges at the lower edges of said end plates attached to the elevated side portions of the car bottom.

7. In a mine car, a car body comprising sills, a central bottom plate between said sills having integrally formed flanges and attached to said sills, flare plates attached to and projecting laterally outward from. said sills, side plates attached to said flare plates, end plates, said end plates attached to said side and flare plates.

8. In a mine car, the combination of the body sills, a vertically disposed plate extending transversely between said sills, inwardly extending flanges on said plate secured to said sills, a bumper block abutting said plate, an outwardly extending flange on said plate underlying said block, and a horizontal plate secured to said sills and projecting outwardly therefrom with its forward portion underlying the bumper block and flange of said transverse plate.

9. In a mine car, the combination of the body sills, a vertically disposed plate attached directly to said sills, a bumper block abutting said plate, an outwardly projecting flange on lates, flanges formed integrally with.

and integral flanges on P said plate underlying said.block, a second plate secured to said sills and underlying said flange and block, a plate forming an end of the car body, and a forwardly extending flange on said end plate overlying said bumper block.

10.' In a mine car, the combination 'of laterally spaced sills, a vertically disposed plate attached to said sills, a bumper block abutting against said plate, a flange on said plate underlying said block, to said sills and underlying said flange and block, a car floor mounted on said sills, an inclined plate secured to the overlying said block, and fastening elements extending through said block and the overlya second plate secured car floor and I ing and underlying portions of the several lates.

11. In a mine car, the combination of laterally spaced sills, a vertically disposed plate attached to said sills, a bumper block abutting said plate, a flange on said plate underlying said block, a second plate attached to said sills and underlying said flange and block, flooring mounted on said sills, a plate attached to and forming an extension of said flooring overlying said block, a plate forming the end of the car body, a flange formed on said end plate overlying the last-mentioned plate, and fastening elements extending through derlying portions of said plates.

l2. In a mine car, the combination of laterally spaced sills, bottom plates mounted on said sills, a vertically disposed plate extending transversely between said sills, vertically d disposed flanges on said vertical plate secured to said sills, a bumper block abutting said vertical plate, an outwardly projecting flange on said plate underlying said block, an inwardly projectingflange on said plate, an inclined plate forming an extension of the car bottom, said inclined plate being supported on the'inwardly projecting flange and overlying said bumper block, and fastening elements extending through said block and the overlying and underlying portions of said lates.

13. In a mine car, the combination of laterally spaced sills, bottom plates mounted on said sills, a vertically disposed plate extending transversely between said sills, vertically disposed flanges on said vertical plate secured to said "lls, a bumper block abutting said vertical plate, an outwardly projecting flange on said plate underlying said block, an inwardly projecting flange on said plate, an inclined plate forming an extension of the car bottom, said inclined plate being supported on the inwardly projecting flange and overlying said bumper block, plates forming the sides of the car body, a plate forming the end of the car body, said end plate having inturned portions secured to the side and bottom plates and an outturned portion overlying the inclined plate said block and the overlying and unlll and bumper block, and fastening elements extending through said block and the overlying and underlying portions of said plates.

14. In a mine car, the combination of laterally spaced sills, floor plates mounted on said sills, a bumper block, a support and backing Vfor said block mounted directly on said sills,

car body side and end plates, and an inclined plate connected and forming a continuation of the iioor plates, said inclined plate overlying said block, and fastening elements extending through said block, its said support,

vand 'the overlying portion of said inclined plate.

15. In a mine car, the combination of laterally spaced sills, bottom plates attached to said sills, a bumper block, a support and backing for said block attached to said sills, and inclined plate forming a continuation of the the car bottom overlying said bumper block, flanges at the sides of said inclined plate attached to said sills, and fastening elements extending through said blocks, its said support and the overlying portion of said inclined late.

16. n a mine car, the combination of side sills, a central bottom plate between said sills, flare plates extending laterally from said sills, end plates, ianges on said end plates engaging against the under surface of said Hare plates, angles at the ends of the car, each angle having one leg attached to an end plate and its other leg engaging against a flare' plate, and a plurality of fastening elementsv each extending through one of said end plate ianges, a flare plate and an engaging leg of said angle.

CLARENCE A. BOYD. 

